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Last week we migrated several Oracle databases to a new DBaaS platform. The company I’m working for is in the midst of a datacenter migration to a new cloud provider. Since the Oracle databases were located on old and very expensive Oracle machines, we looked for opportunities to optimize and reduce costs. After much debate, we decided to move all databases to a shared Oracle Exadata platform. Much faster, and much cheaper: the hardware is more expensive, but you win it back with lower licensing costs (less sockets used).

All the Oracle database migrations went pretty well: stop app, export database, transfer to new DC, import & start database. The app teams updated their connection strings and tested the apps. Pretty painless! However there were also some scripts working alongside the databases, mainly for data loads. Server names changed and some scripts had to be moved from the old database servers to the application servers.